103results about How to "Reduce cache" patented technology

The invention discloses a time-sensitive network gating mechanism traffic shaping and route planning scheduling method, and relates to the technical field of wired communication networks. The method comprises the following steps of: performing routing and transmission joint scheduling on periodic TC traffic according to real-time requirements and priorities, and performing communication transmission scheduling of non-TC traffic on the premise of not influencing deterministic real-time transmission of the TC traffic; according to a TC queue GCL design and a GCL cycle idle period plan, generating an output queue GCL of each switch port, generating an optimal joint scheduling scheme of mixed traffic transmission based on the optimal communication transmission path set of the TC traffic and the non-TC traffic, generating configuration files of the switch ports and the terminal equipment through related configuration software, and configuring the configuration files to each switch and the terminal equipment. On the premise of ensuring multi-period TC traffic deterministic real-time transmission with different real-time requirements, the communication transmission performance of the non-TC traffic is improved as much as possible, and the problems of communication resource waste and schedulable solution space reduction are avoided.

The invention relates to a multi-business supporting network switching device and an implementation method therefor. The device employs a multi-level CLOS switching configuration, and an input unit, an output unit and a switching unit are respectively provided with a buffer memory. The device can process a multi-business flow, and can achieve switching according to the business characteristics. The device can generate quick flow control in a congestion scene through the output unit, wherein the quick flow control acts on an input end, thereby reducing the congestion stress on the output end, and reducing the congestion degree of a central level. The device can reduce the input flow of a fault plane in a link fault scene through a load balancing scheme, and alleviates the congestion of the switching unit. An output unit package ordering method is employed, thereby reducing the design complexity of the switching unit. A data package cell load balancing method of the input unit is employed for enabling the time difference among cells to be small, thereby reducing the time delay of a data package, and reducing the size of the ordering and recombination buffer memory of an output end.

Methods and apparatus, including computer program products, for block compression of tables with repeated values. In general, value identifiers representing a compressed column of data may be sorted to render repeated values contiguous, and block dictionaries may be generated. A block dictionary may be generated for each block of value identifiers. Each block dictionary may include a list of block identifiers, where each block identifier is associated with a value identifier and there is a block identifier for each unique value in a block. Blocks may have standard sizes and block dictionaries may be reused for multiple blocks.

The invention discloses a method, a system and a device for processing a reading record. The main technical scheme of a network side comprises the processes as follows: the network side receives reading record information reported by an electronic reading terminal, obtains terminal information and reading information from the received reading record information; the reading information includes information of a reading object and information for representing reading progress, and the network side builds and stores an incidence relation of the obtained terminal information and reading information. The main technical scheme of a terminal side comprises the processes as follows: the electronic reading terminal generates the reading record information of a user, and reports the generated reading record information to the network side. According to the technical scheme, the reading information is uniformly stored at the network side, so that storage resource of the electronic reading terminal is saved, and the times for reading and writing a cache or a physical storage medium of the electronic reading terminal are reduced, thereby reducing resource occupation of the electronic reading terminal, and the reading information of the user can be determined through the information stored at the network side under the state that the electronic reading terminal is unusable.

The invention relates to a construction method and device of a three-dimensional semantic map, electronic equipment and a storage medium, and the method comprises the steps: obtaining an environment image set, carrying out semantic segmentation of the environment image set according to a trained semantic segmentation model, and obtaining a semantic image sequence; and projecting each frame of semantic image of the semantic image sequence to a pre-established three-dimensional coordinate system to obtain a first point cloud set, the first point cloud in the first point cloud set corresponding to each frame of semantic image; filtering the first point cloud set to obtain a filtered first point cloud set; clustering the first point cloud in the filtered first point cloud set to obtain a second point cloud set; and filtering the second point cloud set to obtain a three-dimensional semantic map. According to the invention, a color image sequence and a depth image sequence are combined as the input of the semantic segmentation model, so that the semantic prediction capability can be improved, filtering is carried out hierarchically based on the point cloud with semantics, the cache can be saved, and the real-time performance can be improved.

Disclosed is a garbage collection algorithm that achieves hierarchical copy order with parallel garbage collection threads. More specifically, the present invention provides a garbage collection method and system for copying objects from a from-space to a to-space. The method comprises the steps of (a) having multiple threads that simultaneously perform work for garbage collection (GC), (b) examining the placement of objects on blocks, and (c) changing the placement of objects on blocks based on step (b). Preferably, the method includes the additional step of calculating a placement of object(s) based on step (b), and using the result of the calculation for step (c). For example, the calculation may be used to increase the frequency of intra-block pointers and / or to increase the frequency of siblings on the same block.

The invention discloses a double-wireless Bluetooth communication network packet loss data processing method, device and system, and the method comprises the steps: building a double-wireless Bluetooth communication network with Bluetooth sound source equipment and second Bluetooth equipment, wherein first Bluetooth equipment serves as network main equipment for controlling the communication flowof the double-wireless Bluetooth communication network; receiving an audio data packet sent by the Bluetooth sound source equipment through the first Bluetooth link, and during the period, monitoringthe audio data packet by the second Bluetooth equipment through the Bluetooth monitoring link; performing correction forwarding operation on the audio data packet which is wrongly received or wronglymonitored through a second Bluetooth link; and during the correction forwarding operation, pausing to send an audio data request instruction to the Bluetooth sound source device until the first Bluetooth device and the second Bluetooth device complete the correction forwarding operation. The correction forwarding operation is not interfered by the Bluetooth sound source equipment, and the correction forwarding communication quality and correction efficiency between the first Bluetooth equipment and the second Bluetooth equipment are improved.

The invention provides a play method and system of videos in a mobile terminal browser and a mobile terminal. The mobile terminal is provided with the browser and a host machine communicated with the browser. The method includes the steps that video information of a video is received through a network and the video is played, the video information is sent to the host machine for storage, and when the browser receives video play regulation instructions from a user, the browser plays corresponding video content in the obtained video from the host machine according to the video play regulation instructions. According to the method, the user does not need to pay extra mobile terminal flow when the user watches a video which is played already or is read ahead, a cache of the browser is saved, operation speed of the browser can not be affected, and user experience is improved.

The invention relates to a low power consumption parallel wavelet transforming VLSI structure, wherein the low power consumption parallel wavelet transforming VLSI structure is connected with two parallel delay cells and a data stream selector or two shunt-wound shift registers and a data stream selector in series before each adder of the data stream in a VLSI structure which directly realizes discrete wavelet transformation; an embedded boundary extension circuit is parallelly and synchronously connected with a structure in which two shunt-wound delay cells / shift registers and a data stream selector form a group. The invention can process two lines of data synchronously to realize time sharing multiplex of main arithmetic units with the hardware utilization rate up to 100%, and reduce the required cache on chips and the access to the exterior memory, thereby efficiently decreasing the power consumption of the whole design. Due to the simple hardware structure, the VLSI is easy to realize.

The invention relates to a coronary artery sequence blood vessel segmentation method based on space-time discriminative feature learning, which is used for carrying out blood vessel segmentation processing on a cardiac coronary artery angiography sequence image, and includes processing a current frame of image and several adjacent frames of images based on a pre-trained improved Unet network model, and obtaining blood vessel segmentation result of current frame image, wherein the improved Unet network model comprises a coding part, a jump connection layer and a decoding part, the coding part adopts a 3D convolution layer to perform time-space feature extraction, the decoding part is provided with a channel attention module, and the jump connection layer aggregates features extracted by thecoding part, thus obtaining an aggregation feature map and transmitting the aggregation feature map to the decoding part. Compared with the prior art, the cardiac coronary artery blood vessel segmentation method introduces the spatial-temporal features to perform cardiac coronary artery blood vessel segmentation, reduces the interference of time domain noise, emphasizes the blood vessel features,alleviates the problem of class imbalance in blood vessel segmentation, and has higher blood vessel segmentation accuracy.

The invention belongs to the technical field of webpage playing, and relates to a websocket-based flv video transmission and webpage playing method, which comprises the following steps of: receiving astream from a video source client of a server, and de-packaging a video obtained by receiving the stream by using a de-pacakging module to obtain a video h264 naked stream; repackaging the video h264bare stream into a flv standard format video through a packaging conversion module; caching an obtained MetaData packet in a memory; sending, by ta WebSocket client, a request instruction to establish connection with the websocket, and pushing video data according to complete video in the flv standard format; detecting the packet sending state of the MetaData packet, and determining whether the MetaData packet is sent or not; after the MetaData packet is sent, sending the common audio and video data packet; and performing decoding rendering on the received push data by using a webpage decoding plug-in and playing the push data. The method has the advantages that the video can be played without depending on a flash plug-in, and delay is shorter when the video is played.

The invention provides a method and a device used for effectively managing WPI secrete key in an 802.11 MAC hardware. A secrete key needed in WPI process comprises an encryption secrete key and a calibration secrete key. When MPDU is encrypted and decrypted, a data grouping number PN attached to the secrete key is needed; WPI secrete key can be updated during processing, PN is also needs to be updated during updating; an old secrete key is invalidated only after a new secrete key is activated; as STA, in the basic structure BSS, MAC hardware only needs to store the secrete key of the MAC but in IBSS or when MAC hardware works as AP, all STA secrete keys and PN in network need to be managed. When the secrete key is updated, two secrete keys and PN are simultaneously kept for the STA. When the data protected by WPI is received or sent, the data needs to be cached till the needed secrete key and the PN are got. The invention resolves the problem that MAC hardware must effectively manage a great amount of WPI secrete keys, thus avoiding occupying memory inside tablets, storing and getting the secrete key in a simple and quick way, realizing fluidization processing of data, reducing cashing inside tablets and decreasing realization difficulty and cost.

The invention discloses a method and a system for producing an LTE PRACH (Long Term Evolution Physical Random Access Channel) baseband signal. The method comprises the following steps of: (1) calculating parameters required by the production of the LTE PRACH baseband signal according to the provisions of the LTE protocol; (2) calculating phase values of a DFT (Discrete Forurier Transform) sequence of a leader sequence, writing the phase values into a frequency domain phase buffer memory in sequence, and executing the step (3) after writing ZNC phase values; (3) configuring IFFT (Inverse Fast Fourier Transform) operation not containing an inverse order to be NIFFT (Non Inverse Fast Fourier Transform) in length and a groups and performing a times IFFT (Inverse Fast Fourier Transform) operation of an NIFFT (Non Inverse Fast Fourier Transform) point; and (4) reading data from a baseband signal buffer memory, sending circulation prefixes and entire sequence part, and clearing the frequency domain signal phase buffer memory and the baseband signal buffer memory to zero after completion. The invention can reduce the times of complex multiplication and complex addition required by high-point IDFT (Inverse Discrete Fourier Transform) during the production process of the LTE PRACH baseband signal.

The invention provides an augmented reality display system and method for virtual-real reconstruction. The system comprises at least one processor and at least one intelligent terminal, wherein the processor is in communication connection with the intelligent terminal, the processor comprises a data acquisition module, a three-dimensional modeling module and a data processing module, the data acquisition module and the three-dimensional modeling module are used for establishing a three-dimensional model, and the data processing module is used for carrying out optimization processing on the three-dimensional model; the intelligent terminal comprises a space positioning module and an environment recognition module. The method is used for space positioning and environment recognition. The system further comprises a model display module for calling the optimized three-dimensional model in the processor. The virtual scene is drawn in the real space, replacement of illumination effects at different times is achieved, tree plants are dynamically generated and destroyed according to different plant codes, only the tree plants within the visual field range are displayed, and therefore the multiple forms and the number of trees can be displayed on a larger scale, and the experience of clients is greatly improved.

The present invention provides a realizing method of multi-service node in T-MPLS optical transmission network. The transmitting process and receiving process to a plurality of business data (TDM, Ethernet service, etc) are realized. In the transmitting process, the multi-service data are firstly adapted and adjusted to T-MPLS frame. The data frame is controlled to transmit the number and length of array through dynamic management of scheduling method. Finally the multi-service data are transmitted by an optical transmitting module. In the transmitting process, the received data frame is processed through a scheduling method for determining to transmit again or receive and reduce to multi-service data. The system is designed with a network management interface which is used for alarming information report and routing information upgrade. Simultaneously, the system is reserved with a novel service interface which can flexibly and conveniently add new service style for T-MPLS network transmission. The method provided by the invention can conveniently provide queue scheduling of multi-service data and has the advantages of low system time delay, flexible and high-efficient resource utilization, etc.

The invention provides an air conditioning unit provided with a flooded shell-tube heat exchanger. The air conditioning unit comprises a compressor, a first heat exchanger communicated with an outflow end of the compressor, the flooded shell-tube heat exchanger, a throttling element connected between the first heat exchanger and the flooded shell-tube heat exchanger, an air-liquid separator and a two-way heat exchanger, wherein a first end of the tube pass of the flooded shell-tube heat exchanger is connected with a first end of the first heat exchanger, and a second end of the tube pass of the flooded shell-tube heat exchanger is connected with an inflow end of the compressor; the air-liquid separator is at least connected between the second end of the tube pass of the flooded shell-tube heat exchanger and the inflow end of the compressor; the first end of the first heat exchanger and the second end of the tube pass of the flooded shell-tube heat exchanger are connected with a first heat exchange pipeline of the two-way heat exchanger, one end of a second heat exchange pipeline of the two-way heat exchanger is connected with an auxiliary road end of a communication liquid phase of the air-liquid separator, and the other end of the second heat exchange pipeline is communicated with a middle air supplementing port of the compressor. Cached refrigerant liquid in the air-liquid separator can be reduced, and liquid impact accidents caused by the fact that the compressor inhales a lot of refrigerant liquid are prevented.

An idle-bandwidth self-adaption method for Internet video streaming media transmission includes that (1) when services provided by an Internet video company or other companies providing video-resources online viewing services are utilized by a user terminal , the amount of videos viewed by the user terminal is acquired by a server according to a user terminal IP (Internet protocol) address, and user terminal video viewing priority is acquired according to operations on a player by the user terminal; (2) speed measurement of the user terminal is performed by the server to acquire average downlink data transmitting rate; (3) storage space volume required by each video while playing and time of each video while playing when requested by the user terminal to view are acquired by the server; and (4) high-quality prepared videos and low-quality prepared videos are buffered sequentially, and the bandwidths are allocated according to a principle of buffering videos with same percentage rates. By the aid of the idle-bandwidth self-adaption method, disordered competition phenomena caused by unregulated manners of existing video streaming media while transmitting are optimized, so that quality of available videos which the users can view online is improved under the condition of constant available bandwidth, and meanwhile, a video copyright protection method is provided.

The invention relates to a transformer differential protection method based on a variable window length integral of sudden change sampling values. A current sample value of each side is obtained through a current transformer of each side of a transformer, the reduction of the currents on other sides of the transformer are conducted on the high voltage side, a differential current sample value anda differential current sudden change amount are obtained through calculation, and the differential current sudden change amount is used to judge whether protection is started or not, and the differential current sudden change amount sample value integral is calculated to judge whether the differential current sudden change amount sample value integral satisfies the condition, and the confirmationcount N1 is accumulated to judge whether the accumulated N1 satisfies the condition. The method improves the action speed of the differential protection, realizes the inverse time limit characteristicof the differential protection, reduces the data cache and the resource occupation, has high operation efficiency and is easy to realize in a device.

The embodiment of the invention discloses a data processing method, equipment and system. The method comprises the following steps: determining a service type which needs to be configured by an OID (Object Identifier) by a configuration side, and generating a resource record corresponding to the service type; storing the resource record into a corresponding DNS (Domain Name Server) database; obtaining a first service type request of an OID application by a client side, and generating a query domain name parameter according to a preset generation rule on the basis of the first service type of the OID application, wherein the query domain name parameter comprises the first service type; on the basis of the query domain name parameter, inquiring the corresponding DNS database, and obtaining service configuration information corresponding to the query domain name parameter; and sending the service configuration information to the OID application.

The invention discloses a process migration method, a computing device and a storage medium, and the process migration method comprises the following steps of calculating the predicted running time of each process in a processor according to the running information of the processes; according to the predicted running time of the processes, determining the process with the predicted running time smaller than a running time threshold value as a short running process; acquiring the running information of the processor, and determining whether the short running process is used as a to-be-migrated process according to the running information of the processor; if the short running process is the to-be-migrated process, determining a target processor for migrating the to-be-migrated process according to the running information of other processors; and migrating the to-be-migrated process to the target processor for operation. According to the present invention, the migration of all the short running processes can be avoided, the migration frequency of the short running processes is reduced, the problem of invalidation of cache and memory affinity caused by migration is reduced, and it is guaranteed that when the short running processes are migrated, the system performance can be improved, and the use efficiency of the processor is improved.

The invention discloses a multicast pruning method, a protocol independent multicast (PIM) router and a group management snooping exchanger. A multicast source is connected to a first-hop PIM router through the group management snooping exchanger. The method comprises the following steps: if the first-hop PIM router receives a multicast flow sent by the multicast source, and finds that requirements for receiving the multicast flow do not exist locally, or if the first-hop PIM router receives a PIM pruning message for one multicast flow sent by a downstream PIM router, deletes an interface for receiving the message from an outlet interface list of the multicast flow, and then finds that requirements for receiving the multicast flow have not existed jet locally, sending out a group management pruning message from an inlet interface of the multicast flow; and when the group management snooping exchanger receives the group management pruning message, using the receiving port of the message as a pruning port, and no longer forwarding the multicast flow to the pruning port. The invention prunes the useless multicast flow between the multicast source and the first-hop PIM router.

An embodiment of the invention provides a method and a device for data message transmission and relates to the field of communication. The method and the device can reduce cache distributed for users, a step in the prior art of recombining message fragments is omitted, and power consumption and cost of a chip are reduced. The method includes that a first message fragment which comprises a fragment start field and a fragment end field is received; and if the fragment end field comprises first identification, the first message fragment is converted into a first message slice of a corresponding format or a message slice of a corresponding format according to the fragment start field and the fragment end field and according to a preset rule. Whether the length of the message slice is larger than a preset value is judged according to the length of the message slice. If the length of the message slice is larger than the preset value, the message slice is used as the first message slice. The first message slice is sent to a buffer.

The data preheating method disclosed in the embodiment of the present application belongs to the computer technical field and solves the problem of low utilization rate of cache resources during datapreheating in the prior art. The method comprises: getting the current service object accessed by the target vendor, determining a candidate preheating service object corresponding to the current service object, according to the acquired self-information of the target merchant, any one or more of the peer information of the target merchant and the preset attribute information of the candidate preheating service object, determining a heat value of the target merchant to the candidate preheating service object, and performing a data preheating operation on data of the candidate preheating service object whose heat value satisfies a preset condition. The present application improves the timeliness of data by initiating data preheating based on the real-time behavior of the merchant. The cachecan be saved by determining the heat value of each service object in combination with mechant data and selecting the service object whose heat value meets the preset conditions to preheat the data.

The invention discloses a method and a system for realizing a regional analysis chart. The method comprises the following steps that source regional layer data is exported at a GIS (Geographic Information System) platform, and the source regional layer data is cached to a WEB server after executing regional layer compression processing to the source regional layer data; the WEB server obtains an analysis request sent by a foreground map page and obtains region layer data and business data corresponding to each region from the cache; the foreground map page determines a chromatic value of each region according to the business data of each region and at least one chromaticity determining rule, calls an API (Application Programming Interface) and the source regional layer data of the GIS platform to generate a regional surface, and renders the regional surface according to the corresponding chromatic value to generate the regional analysis chart. By adopting the method and the system, the efficiency for regional analysis can be improved, the cache of the foreground map page is saved, and an effect of rapidly rendering to generate the regional analysis chart (such as a four-color image) is realized.

The invention provides a browser script caching method and system. The method comprises the steps that a browser obtains scripts according to an Ajax request; if the scripts are executed one by one in a dynamic explanation mode according to an Ajax request sequence; the successfully-executed scripts are stored into a local storage; unsuccessfully-executed scripts are encoded and then stored into the local storage. The request scripts of the Ajax method are adopted, the obtained scripts are dynamically executed, the scripts are cached into the local storage if executed successfully, and the scripts are encoded and then cached locally if executed unsuccessfully; compared with the prior art for adopting a label for marking a script needing to be loaded, according to the scheme, the scripts are cached into the local storage, the corresponding scripts can be obtained locally directly during a next request instead of obtaining all the scripts again, browser caching is better controlled, unnecessary script loading is reduced, and the webpage loading speed is increased.

The invention provides a flow management device and a method for saving a cache resource. The flow management method comprises the following steps of: setting a read command cache; sending read commands to the cache; reading the read commands according to a first-in first-out sequence, reading data according to the read commands to a queue to which a storing outbound line side module sends the data; judging whether the read command stored by the cache reaches a preset threshold value; and stopping sending the read command if the preset threshold value is reached, and continuously reading the read command in the cache according to the first-in first-out sequence. The flow management device and the method reduce cache usage in a flow management system.

The invention discloses a method for realizing a multi-sampling rate ADC controller. A sampling trigger pulse is independently generated by each sampling controller through a triggering timer, and then the sampling trigger combiner combines the sampling trigger signals of multiple channels to form a sampling trigger signal with varying intervals to start the ADC module, finally, the sampling valuedistributor synchronously writes the ADC conversion result into the sampling value buffer queue of the corresponding sampling controller according to the sampling trigger request of each independentsampling controller to complete multi-rate data sampling, The invention has the advantages of simple and easy realization, small sampling buffer, few ADC starting times, short sampling delay and the like, and has a good application prospect.

The invention discloses a multichannel signal correlation analyzing method and system. The method comprises the following steps: storing acquired multichannel signal data to an internal memory of a GPU (Graphics Processing Unit); extracting the multichannel signal data from the internal memory of the GPU, parallel solving KT (Kendall's tau) between the signal data of every two channels of the multichannel signal data by utilizing the parallel computing capacity of the GPU, and obtaining the KT corresponding to the multichannel signal data. According to the multichannel signal correlation analyzing method and the multichannel signal correlation analyzing system, the KT for testing the quality of the multichannel signal data is solved on the basis of the GPU; the GPU is parallel, so that the method and the system have the characteristics of little cache, numerous nuclear numbers, simple digital logical computing unit, applicability to mass data processing and the like; therefore, the solving efficiency is improved during an actual process of solving the KT by utilizing the GPU, and a large amount of time is saved.